Finding the Fourth Proportional to 2,501.55, 3,456.81 and 2,279.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,501.55 : 3,456.81 = 2,279.07 : x
2. Step 2: Convert to fraction form
   2,501.55/3,456.81 = 2,279.07/x
3. Step 3: Cross multiply
   2,501.55x = 3,456.81 × 2,279.07
4. Step 4: Simplify right side
   2,501.55x = 7,878,311.97
5. Step 5: Solve for x
   x = 7,878,311.97/2,501.55
6. Step 6: Final answer
   x = 3,149.37